It was discovered that Apache ZooKeeper incorrectly handled certain inputs.
An attacker could possibly use this issue to cause a denial of service or
other unspecified impact. (CVE-2016-5017)
It was discovered that Apache ZooKeeper incorrectly implemented “wchp/wchc”
commands. An attacker could possibly use this issue to cause a denial of
service. (CVE-2017-5637)
It was discovered that Apache Zookeeper incorrectly handled clusters. An
attacker could possibly use this issue to obtain sensitive information.
This issue only affected Ubuntu 16.04 ESM. (CVE-2018-8012)